#region Using Directives and Copyright Notice

// Copyright (c) 2007-2010, Computer Consultancy Pty Ltd
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above copyright
//       notice, this list of conditions and the following disclaimer in the
//       documentation and/or other materials provided with the distribution.
//     * Neither the name of the Computer Consultancy Pty Ltd nor the
//       names of its contributors may be used to endorse or promote products
//       derived from this software without specific prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
// ARE DISCLAIMED. IN NO EVENT SHALL COMPUTER CONSULTANCY PTY LTD BE LIABLE 
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
// DAMAGE.

using System;
using System.Collections.Generic;
using System.Text;

#endregion

namespace Interlace.Utilities
{
    public static class HumanFormats
    {
        public static string Format(TimeSpan time)
        {
            if (time.TotalHours < 1.0) return "Less than 1 h";

            int totalHours = (int)Math.Round(time.TotalHours);

            int days, hours;
            days = Math.DivRem(totalHours, 8, out hours);

            string value = "";

            if (days > 0)
            {
                value = string.Format(days == 1 ? "{0} d" : "{0} d", days);
                if (hours != 0) value += ", ";
            }

            if (hours > 0 && days < 14)
            {
                value += string.Format(hours == 1 ? "{0} h" : "{0} h", hours);
            }

            return value;
        }

        public static string Format(DateTime time)
        {
            if (time.Date == DateTime.Today) 
            {
                return string.Format(Strings.TodayTimeFormat, time);
            }

            if (time.Date == DateTime.Today.AddDays(-1))
            {
                return string.Format(Strings.YesterdayTimeFormat, time);
            }

            return time.ToString(Strings.NiceDateFormat);
        }
    }
}
